Browse Prior Art Database

SINGLE BUTTON READ/BACKLIGHT CONTROL FOR DISPLAY PAGERS

IP.com Disclosure Number: IPCOM000006149D
Original Publication Date: 1991-Apr-01
Included in the Prior Art Database: 2001-Dec-07
Document File: 2 page(s) / 72K

Publishing Venue

Motorola

Related People

Morris Moore: AUTHOR

Abstract

In a display pager, the use of an LCD results in the need to provide backlighting for use in low ambient light environments. Current products have a button that when pressed activates the backlight. This button is different from the button used to step through messages. This situation could be improved by sim- ply requiring the user to press and hold the "read message" button to activate the backlight. That is, press and release to cause the message to be displayed. Press and hold to cause the message to be displayed and after, for example, two seconds, activate the backlight. Deactivation of the backlight could take place upon button release or after some pre-set period of button inactivity (as in some of today's products). Figure 1 shows an embodiment of a pager utilizing this feature.

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Page 1 of 2

MO'lrOROLA INC. Technical Develouments Volume 12 April 1991

SINGLE BUTTON READ/BACKLIGHT CONTROL FOR DISPLAY PAGERS

by Morris Moore

  In a display pager, the use of an LCD results in the need to provide backlighting for use in low ambient light environments. Current products have a button that when pressed activates the backlight. This button is different from the button used to step through messages. This situation could be improved by sim- ply requiring the user to press and hold the "read message" button to activate the backlight. That is,

press and release to cause the message to be displayed. Press and hold to cause the message to be displayed and after, for example, two seconds, activate the backlight. Deactivation of the backlight could take place upon button release or after some pre-set period of button inactivity (as in some of today's products). Figure 1 shows an embodiment of a pager utilizing this feature.

f DISPLAY PAGER ARCHITECTURE \

IMPLEMENTING SINGLE BUTTON READ I BACK-LIGHT CONTROL

BUTTON

-L

CONTROLLER

\ FIGURE 1 J

0 MOtorOla. Inc. ,991 163

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Page 2 of 2

M MOTOROLA INC. Technical Developments Volume 12 April 1991

0

  Figure 2 is a flowchart of the software to Second, there needs to be some button press or similar implement this feature. This technique could be action that alters the mokle of the display. Finally, the applied to other products as well, given that certain action of holding dow...